html,body{
	    	margin:0;
	    	padding:0;
	    	font-family:Arial,'Microsoft YaHei';
	    }
	    .top-section{
	    	color:#010000;
	    	padding-top:4rem;
	    	font-size:0.8rem;
            text-align:center;
            letter-spacing:2px;
	    }
	    .top-section img{
	    	width:3.3rem;
	    	height:3.3rem;
	    }
	    .btn-section{
	    	padding:2rem 0.9rem;
	    }
	    .common-btn{
	    	margin-bottom:1rem;
	    }